A(n) ________ is a group of atoms that determines many of the properties of an organic molecule
A) functional group
B) phosphate group
C) amino group
D) carboxyl group
E) hydroxyl group
A
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In response to severe injuries or burns, the body may repair itself by producing scar tissue to fill the damaged area. This process is called _______
Fill in the blank with correct word.
In type 2 diabetes, insulin levels are frequently normal, yet the target cells are less sensitive to the effects of insulin. This suggests that the target cells
A) may have a defect in their signal transduction pathway. B) are impermeable to insulin. C) have adequate internal supplies of glucose. D) cannot convert insulin to an active form. E) None of these answers are correct.
An example of a messenger that acts as a neurotransmitter when released from a nerve ending or a hormone when secreted by an endocrine cell is ____________________
Fill in the blank(s) with correct word
In one passage through a bed of systemic blood capillaries, the blood gives up about what percentage of its oxygen?
A) 5% to 10% B) 70% to 85% C) 20% to 25% D) 10% to 15% E) 30% to 40%